Envelop.



G. SCHNITZLER.

BNVELOP,

APPLIOATION FILED MAY 31, 1913.

1,098, 175. Patented May 26, 1914.

x 'A ATTORNEYS UNITED STATES OFFICE.

. encuen scrimrzLm, or NEW Yoan, N. 'Yg

Elevator.

A vide an envelop having a tearing section reinforced to provide auniting member, the structure of which is unbroken; to provide in anenvelop of the character mentioned means for preventing theintroductionwithin the tearing area, of'the letter or inclosure when deposited inthe envelop; and to provide means of the character mentioned readily andcheaply applicable to envelops constructed in accordance withv thepresent invention.

One embodiment of the present invention is shown in theaccompanyingdrawings, in which- Figure 1 is a view of an envelop blank havingattached thereto a reinforcing strip constructed and arranged inaccordance with the present invention; Fig. 2 is a similar view of amodified form, showing an end fragment of the envelop having saidreinforcing strip, the body of the envelop 'bein shown as scored andperforated to facilltate the parting of the tearing strip; Fig. 3 is asimilar View of a modilied form, wherein the reinforcing strip is.shownas applied to the flap and body portion of the envelop blank; Fig. 4 isa detail View, on an enlarged scale, showing in section an end fragmentof an envelop constructed and arranged in accordance with theconstruction shown in Fig. l, the section being taken as on the line 4-4in said figure; Fig. 5 is a similar view of the construction shown in/Fig 2, the section being taken as on the line 5 5 in said Fig. 2; Fig.6 is a similar view of the construction shown in Fig. 3, the sectionbeing taken as on the line (5*6 in said Fig. 3.

As seen in the accompanying drawings, the envelop blank 11 is ofconventional construction. The sheet from which it is cut is previouslyprovided with a suitable number of lines of perforations 12, so locatedon the sheet that when the blank 11 is cut, the line of perforations l2is spaced from Specification of Letters Patent.

Application led May 31, 1913. Serial No. 770,978.

shown in Fig. 1 of the drawings. The -se'ctions of the flap 13 in whichthe perfora tions 12 are placed are by this means partially severed. Thetexture of the material is such, however, that in. the ordinary serviceto which the envelop is put, ythe material becomes broken, and thereexists the danger of the envelop breaking. at this point to permit thewithdrawal from, or loss .of the contents of, said envelop.`

y *Patented-May 26,1914.

the body of the envelop Asubstantially as It is to avoid the severanceof the sections of thel flap 13, to which attention is above drawn, thatI attach to the 'lap 13 and to the inner surface thereof, a reinforcingstrip 14, constructed of any suitable material, such as a close-wovenpaper, the weave of the paper providing pliability conjoined withtensile strengt The reinforcing strip is attached to the flap 13 lby asuitable adhesive. The stri 14 is furnished with a gummed or coatesection 15, the width of which is slightly less than the width betweenthe vertical edge of the body of the envelop and the line ofperforations 12.

When the sheet from which the blanks,

such as designated by the numeral 11 in the drawings, are cut, has beenprovided with the pcrforations 12 and the strips 14, the blanks are cuttherefrom as though the strips did not exist. When the edges of theflaps of the enve op have been gummed and the blank is fold d to formthe envelop of commerce, the coated section 15 is moistened so that itadheres to the inner face of the body portion 11. The adheredportionsheld by the coated section 15 prevent the intrusion of the contents ofthe envelop beyond the line of tear or separationprovided by theperforations 12. When thus con.- structed, the envelops are handled inthe usual manner. It will be noted, however, that the nclosure of theenvelop cannot pass beyond the line of perforations 12.

I/Vhen the envelop is to be now opened, the' end portion having thegummed section 15 is torn from the body of the envelop, the line of tearbeing controlled by the weakened texture in which the line ofperforations 12 is formed.

In certain forms of envelops, I prefer to add a second line ofperforations 16, which perforations in the completed envelop are formedin the body of the blank 11, and

flaps 17 and 18 as seen best in Fig. 2 of the loo drawings. When now theenvelop is folded,

the coated section will unite the portions of the body of the blank 11between the line of perforations 16 and the edge of said body and thecoated section of the Hap 13.

When thereafter the rigid edge thus formed by uniting the coated sectionand the corresponding portion of the body of the blank, is torn from theenvelop, the coinciding lines of perforations 12 and 1G reduce theresistance of the material to the tearing effort.

and preferably on the portion thereof Vwhich f is attached to the bodyof the blank 11. It will be seen that when thus constructed, the unitedsections of the flap 13 and the body of the blank 11, between the? edgeof the folded envelop and the lines of perforations 12 and 16,constitutes a rigid edge, which may be ripped or torn from the body ofthe envelop. It will further'be seen that the mesma united portionswithin the envelop, of the strip 19, will prevent the intrusion .of thecontents of the envelop into the tearing area. v Having thus describedmy invention, I claim as new and desire to secure by Letters Patent Ablank of the character described having a rectangular body portion andflaps extending therefrom and provided with a plurality of lines ofperforations, said lines being disped parallel to the edge of the bodyportion of saidenvclop and equally distant therefrom and on oppositesides thereof to coincide when the blank is folded;

and 4an imperforate reinforcing strip to coveil said linesof'perforations and extendlng at both sides thereof, sald strip havingan adhesive surface extending from the edgel of the body portieri to oneof the lines of perfor-ations.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE SCHNITZLER.

'Witnessesz E. F. MURDooK, PHILIP D. ROLLHAUS.

